CVE-2025-20138
Cisco released High Security Alert for IOS XR Software

Cisco has issued a security advisory for a high-severity vulnerability in its IOS XR Software, labeled CVE-2025-20138, with a CVSS score of 8.8, which signifies a serious risk.

The vulnerability in the Command Line Interface (CLI) of Cisco IOS XR Software allows an authenticated local attacker to execute arbitrary commands as root on the affected device’s operating system.

• Alert

Citrix NetScaler SAML 0-Day Flaw Under Attack

By infosecbulletin / Monday , October 5 2026

Citrix has put out emergency security updates for a NetScaler SAML flaw that hackers are using. Known as CVE-2026-88779, this...

Read More

• Cyber Attack

Major Danish university breached, 200,000 users at risk

By infosecbulletin / Monday , October 5 2026

Hackers got into the identity and access management system at the Technical University of Denmark (DTU) and downloaded a lot...

Read More

• Hot Topic

Microsoft’s X account hijacked to promote Clippy crypto scam

By infosecbulletin / Sunday , October 4 2026

Microsoft's official X account was taken over to promote an unapproved Clippy-themed cryptocurrency. The tech giant’s X account, with 13...

Read More

• Alert

Critical cPanel, GitLab AI Gateway and Dell CSM Flaws Enable RCE And Admin Hijacking

By infosecbulletin / Saturday , October 3 2026

CPanel has put out security updates to fix three problems in cPanel & WHM. These problems could let attackers take...

Read More

• Cyber Attack
• Data Breach

Nearly 100,000 email addresses exposed in first AI-related data breach in Singapore

By infosecbulletin / Friday , October 2 2026

Nearly 100,000 Bee Cheng Hiang customers had their email addresses leaked when an employee used an AI tool to generate...

Read More

• Alert

Hackers Exploit Zimbra Mail Servers: TeamViewer patched 5 critical flaws

By infosecbulletin / Thursday , October 1 2026

Hackers to exploit a flaw in Zimbra mail servers that are connected to the Internet. They send special emails that...

Read More

• Alert

Google Warns of Hackers Actively Exploiting Citrix 0-Day Flaws

By infosecbulletin / Wednesday , September 30 2026

Google has said that hackers are using two serious Citrix NetScaler security holes to get root access, set up hidden...

Read More

• Alert

CISA Warns Critical MikroTik RouterOS Flaw While Cisco SD-WAN Zero-Day Exploited in Attacks

By infosecbulletin / Wednesday , September 30 2026

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) is alerting people about a major flaw in MikroTik RouterOS. This could...

Read More

• Alert
• Cyber Attack

Apple Zero-Day Exploited: Pentagon Data Breach Reportedly Exposes Sensitive Data of 3 Million People

By infosecbulletin / Tuesday , September 29 2026

Apple has launched iOS 26.7.1 and iPadOS 26.7.1 to fix a serious zero-day flaw that it believes might have been...

Read More

• Cyber Attack

JadePuffer Agentic AI targets and destroys Azure’s cloud resources

By infosecbulletin / Tuesday , September 29 2026

The JadePuffer ransomware group is attacking Azure users with agent-based attacks that gather information, steal passwords, and damage key components. The...

Read More

This vulnerability is due to insufficient validation of user arguments that are passed to specific CLI commands. An attacker with a low-privileged account could exploit this vulnerability by using crafted commands at the prompt. A successful exploit could allow the attacker to elevate privileges to root and execute arbitrary commands.

This vulnerability affects Cisco IOS XR 64-bit Software, regardless of device configuration. To determine if a specific Cisco software release is vulnerable, users are advised to consult the “Fixed Software” section of the advisory.

The following products are not affected by this vulnerability:

IOS Software
IOS XE Software
IOS XR 32-bit Software
NX-OS Software

Cisco has confirmed there are no workarounds for this vulnerability. The only solution is to install the required software updates.

Cisco has released software updates to fix a critical vulnerability. Customers should upgrade to the fixed software version promptly.